3D Models of Cities from Satellite Images are Useful for Estimating the Properties of Buildings

 

 

 

For estimating losses due to earthquakes, one needs to know the characteristics of the building stock in a city.  The job to compile such information for the numerous cities in worldwide areas of earthquake and tsunami risk is enormous; too large for engineering teams on foot.  Therefore, WAPMERR is developing methods to derive information on the nature and height of buildings from satellite images in a cost-effective way.

The following images show examples of 3D models of parts of cities.



 
Figure 1: 3D model of the waterfront of Dubai, constructed from a high resolution satellite image with facades photographed from the ground.

 

 
 
       
  Figure 2: 3D model of part of Delhi from a high resolution satellite image..    



     
       
 

IFigure 3: Monument in Delhi modeled based on a high resolution satellite image.